Street-sweeper



(No Model.) -4 sheets-sheet 1 P. JAGOBSON. 815.0. E. GAIN.

STREET SWEBPER.

Patented Dot; Z0, 1896.

r. mams Ferias co.. PHQmLW (Nn Modem 4 Sheets--Sheet 2.

P.JACOBSON & C. E. GAIN. STREET SWEBPBR.

No. 569,644. Patented 001;. 20, 1896.

(No Model.) 4 Sheets-Sheet 3.

P. JAGOBSON 8v O. E. GAIN.

STREET SWBBPBR.

No. 569,644. A Patented ont. zo, 1896.

O" @@QW y m i. 6M

Y L1'Sheatier-Sham: 4.

YP. JACOBSON a G. E. GAIN.

STREET SWBEPER.

No. 669,644 Patented 666. 20, 1696.

(No Model.)

UNITED STATES PETER JACOBSON AND CHARLES E.

STREET- GAIN, OF MILVAUKEE, VISCONSIN.

SWEEPER.

SPECIFICATION forming part of Letters Patent No. 569,644, dated October20, 1896. Application tiled April 27, 1896. Serial No. 589,160. lilomodel.)

T0 (LM wiz/0m it may concern:

Be it known that we, PETER J ACoBsON and CHARLES E. GAIN, citizens ofthe United States, and residents of Milwaukee, in the county otMilwaukee and State of YVisconsin, have invented certain new and usefulImprovements in Street-Cleanin g Machin es; and we do hereby declarethat the following is a full, clear, and exact description thereof.

Our invention has for its object to provide a simple, economical, andefficient machine for cleaning streets without scattering dust 5 and itconsists in certain peculiarities of construction and combination ofparts hereinafter set forth with reference to the accom pan yingdrawings and subsequently claimed.

In the drawings, Figure l represents our machine as it appears withcertain parts broken away and in section, the plane of the sec-tionbeing longitudinally of the machine; Fig. 2, a side elevation of saidmachine; Fig. 3, a plan view of the dirt-elevating portion of theaforesaid machine, having portions thereof broken away; Fig. et, atransverse section indicated byline et et in Fig. Fig. 5, a detail viewof a series of pipes embodied in the machine; Fig. G,a perspective viewof one of said pipes, and Fig. 7 a detail sectional view illustrating anair-strainer and knockermechanism for the same embodied in thedirt-collector portion of said machine.

Referring by letter to the drawings, A represents an annular stay-frameprovided with a central front tongue extension B, to which asteering-wheel C is swiveled, and an axle D has its bearings in sides ofsaid frame. The frame A surrounds another frame having longitudinaltimbers E thereof provided with shackles l, loosely engaged by the axleD, and a transverse rod F, mounted in bearings c on the front endsofsaid timbers, is provided with cranks d, that engage inclined slots ein the sides of the former frame. Au arm fof the rod F is connected by alink g with a hand-lever G, fulcrumed on the inner frame, and byoperating this lever said frame is tilted on the axle D to bring certainhereinafterspecified parts of the machine in and out of workingposition. The lever G is shown provided with a latch-dog h, engagablewith a suitably-arran ged rack t to hold the tilt-frame in adjustedposition, and said lever is also within easy reach of a person occupyinga seat H, mounted on said frame.

Traction-wheels l are herein shown fast on the axle D between the stayand tilt frames, and a ratchet-tooth clutch-sleeve J is also shownarranged on said axle to move longitudinally of the same under controlof a spanner-lever K, engaged with a grooved collar j at the outer endof said sleeve. The spann erlever is pivoted on the tilt-frame, and alatchdog k, in connection with said Spanner, cooperates with asuitably-arranged rack in on said frame to lock said sleeve in adjustedposition.

The inner ratchet end of sleeve J comes in and out of engagement withthe ratchet end of the hub L, belonging to a spur-wheel M, loose on axleD and in mesh witha pinion N, fast on a shaft O, mounted in bearings onthe tilt-frame. A spur-wheel P, fast on shaft O, is shown in mesh with apinion Q, fast on a counter-shaft R, also mounted in bearings on thetilt-frame, and a pulley S is also fast on the counter-shaft.

Vhile we have shown a simple speed-multiplying train of gearingconnecting the axle D and pulley-carrying counter-shaft R, it ispractical to further increase the speed of said shaft by the employmentof additional gearing in suitable arrangement. XVe have also shown theclutch-sleeve J and clutch-hub L as having their opposing ends in theform of ratchet-s, the teeth of the latter being so disposed that whensaid sleeve and hub are engaged the gearing in train with the clutchwill not have motion, except when the machine is moving forward, but itis practical to have the traction-wheels in pawl-and-ratchet engagementwith the axle to accomplish the same result, this way of connectingwheels with an axle being a well-known mechanical expedient.

Carried by the tilt-frame is afsuitable casing T for a rotary fan U,having its shaft V mounted in bearings on said frame, and a pulley lV,fast on this shaft, is connected by a belt X with pulley S aforesaid,the spur and pinion gearing and relative diameters of the belt-pulleysbeing such that the fan is run at a high rate of speed.

Leading into one side of the fan-casing, central of the same, is a spoutY, having its IOO rear lower end laterally extended in oppositedirections. Each of a series of nipples n, extending rearward from thelower end of the spout, is connected by a flexible tube p with the elbowupper end or nipple q of a vertical pipe Z,loose in a guideway A',suspended from the tilt-frame of the machine. The pipes set closetogether in their guideway, and a bar of this guideway being directlyunder the elbow ends or nipples of said pipes the latter are limited inthe matter of descent, so rthat they may be brought away from thesurface over which they travel yby a suitable tilt of the frame fromwhichsaid guideway is suspended.

Itis preferable, as herein shown, to provide the lower end of each pipeZ with front and rear upturned shoes, and said pipes being brought intocontact with the surface over which they travel they will automaticallyadjust themselves to inequalities of such surface.

One of the essential features of our inven tion is to have the wholearea of the lower ends of the pipes parallel to the surface with whichthey are brought into close yielding contact, whereby we establish apartial vacuum that insures a suction of dirt by the power of the fan. v

Forward of each pipe We show a brush B', having a spring-hanger C',attached to the under side of the rear llower end of spout Y, this brushserving to loosen dirt in the path of said pipe.

Dirt elevated into the fancasing is discharged through a spout D of thiscasing having a flexible extension D", leading into a closed cart E',that is coupled to the rear of stay-frame A above specified and providedwith a tail-gate F', in order to permit removal of the accumulated dirt.The cart is shown provided with a hinged cover having bowsprings G'depending` therefrom, and supported on ledges within said cart isa'strainer Il' intermediate of the dirt-entrance, and an air-.outletinto which is lfitted a flexible extension l' of Va spout I", supportedon the aforesaid tilt-frame and led into a dust-col lector J',detach-:tbl y arranged in a hanger K', suspended from said tilt-frameforward of the brushes and dirt-pipes hereinbefore set forth. Y

The strainer Il' may be of any suitable construction; but the one shownin Figs. l and 7 comprises a crate-like structure having its top, ends,and sides lined with a porous fabric, such as ordinary flannel, rodssupported in the frame, bars hung on the rods, and strands of yarndepending from the bars. The springs G', depending from the top of thecart, exert pressure against the frame portion of the strainer, and thisframe has lugs 9', that extend through notches in the sides of said cartto bear on crank-controlled`cam-disks L', the latter being pivoted onthe aforesaid cart. Rotation of the cam-disks elevate the strainer awayfrom its supporting-ledges against re-4 sistance of springs G', and thedrop in said disks permit contraction of said springs to force saidstrainer back on said ledges with a sudden jar for the purpose ofdislodging accumulated dust.

The strainer H' will catch the greater portion of the dust rising in thecart, but such dust as may be carried on by the blast thropgh spout l"will be diffused in dust-collector J', where said air is free to expand.lt also follows that any dust passing through the collectorJ' tends tosettle in the path of the dirtpipes, softhat the cleaned surface is notaffected.

rlhe dust-collector may be of any suitable construction; but the oneshown in Fig. lis a frame supporting upper and lower sheets of flannelor other porous fabric, the forward lower end of the blast-spout l"being engaged with a collar s, set in said upper sheet of poreousfabric.

The various structural details of our machine may be indefinitely variedin practice without departure from the most essential features of theinvention, these features being a series of pipes adjustable to have thewhole area of their lower ends in vclose yielding contact with thesurface to be cleaned, a suction and blast apparatus in communicationwith the pipes, a closed dirt-receptacle in suitable connection withsaid appara tus, and an air-strainer in the dirtrecep tacle, togetherwith an air-conveyer leading from said receptacle, and a dust-collectorin conjunction with the conveyer ahead of the aforesaid pipes, thisconveyer and dust-- collector being auxiliary features that in no wayaffect the action of those previously enumerated, it bei-ng understoodthat suction and blast are relied upon to elevate and collectstreet-dirt, the dust-laden air being thor oughly strained before it ispermitted to csca-pe into the atmosphere.

Having thus described our invention,what we claim as new, and desire tosecure by Letters Patent, is-

l. A street-cleaning machine vcomprising a suitable frame provided witha guideway, a series of vertical pipes loose in the guideway for closeyielding contact with the surface to be cleaned, a suction and blastapparatus in communication with the pipes, a dirt-receptacle inconnection With said apparatus, and an air-strainer in the receptacle.

2. A street-cleaning machine comprising a suitable frame provided with aguideway, a series of vertical pipes loose in the guideway for closeyielding contact with the surface to l be cleaned, a suction and blastapparatus in communication with the pipes, a dirt-receptacle inconnection with said apparatus an air-strainer in the receptacle, anair-conveycr leading from said receptacle, and a dust-collector incommunication with the conveyer.

3. A street-cleaning machine comprising a suitable frame provided with aguideway, a series of vertical pipes loose in the guideway TOO for closeyielding contact with the surface to be cleaned, surface-brushes inadvance of the pipes, a suction and blast apparatus in communicationwith said pipes, a dirt-receptacle in connection with said apparatus,and an airstrainer in the receptacle.

A street-cleaning machine comprising a stay-frame, a traction-wheel axlehaving its bearings in the frame, another frame in tilt connection withthe axle and former frame, suitable means for adjusting the tilt-frameand maintaining the same in adjusted position, a guideway hung from saidtilt-frame, a series of vertical pipes loosely arranged in the guideway,asuction and blast apparatus on the aforesaid' tilt-frame incommunication with the pipes, a dirt-receptacle in connection with saidapparatus, and an air-strainer in the receptacle. g

5. A street-cleaning machine comprising a stay-frame a traction-wheelaxle having its bearings in the frame, another frame in tilt connectionwith the axle and former frame, suitable means for adjusting thetilt-frame and maintaining the same in adjusted position, a guidewayhung from said tilt-frame, vertically yielding pipes arranged in theguideway, a rotary fan and its casing arranged on the aforesaidtilt-frame, clutch-controlled speed-gear in train with said axle andfan, flexible tubes connecting the aforesaid pipes and fan-casing, aclosed cart coupled to the stay-frame and provided with an air-outlet, aspout of the fan-casing in flexible connection with the cart, and anair-strainer in said cart.

6. A street-cleaning machine comprising a stay-frame, a traction-Wheelaxle having its bearings in the frame, another frame in tilt connectionwith 'the axle and former frame, suitable means for adjusting thetilt-frame and maintaining the same iu adjusted position, a guidewayhung from said tilt-frame, a series of vertical pipes loosely arrangedin the guideway, spring-hun g brushes arranged forward of the pipes, asuction and blast apparatus on the aforesaid tilt-frame in communicationwith the pipes, a dirt-receptacle, in con nection with said apparatus,and an airstrainer in the receptacle.

7. A street-cleaning machine comprising a stay-frame, a traction-wheelaxle having its bearings in the frame, another frame in tilt connectionwith the axle and former frame, suitable means for adjusting thetilt-frame and holding the same in adjusted position, a guideway hungfrom the said tilt-frame, vertically-yielding pipes arranged in theguide- Way, a rotary fan and its casing arranged on the aforesaidtilt-frame,u clutch-controlled speed-gear in train with said axleV andfan, flexible tubes connecting the aforesaid pipes and fan-casing, aclosed cart coupled to the stay-frame, a spout of the fan-casing inflexible connection with the cart, an air-strainer in said cart, anexhaust-air spout in flexible connection with the aforesaid cart, and adustcollector in communication with the discharge end of the latterspout.

S. A street-cleaning machine comprising a suitable frame, a series ofvertically-disposed pipes adjustable to have the whole area of theirlower ends in parallel yielding contact with the surface to be cleaned,a suction and blast apparatus in communication with the pipes, adirt-receptacle in connection with said apparatus, and an air-strainerin the receptacle consisting of an angular frame having its top sidesand ends lined with porous fabric, bars hun g in the frame and strandsof yarn suspended from the bars.

9. A street-cleaning machine comprising a suitable frame, a series ofpipes for close yielding connection with the surface to be cleaned, asuction and blast apparatus in communication with the pipes, adirt-receptacle in connection with said apparatus, and an airstrainerinthe receptacle consisting of a cratelike frame having the top, sides andends thereof lined with porous fabric, bars hung in the frame andstrands of yarn suspended from the bars, together with suitable meansfor jarring said strainer to dislodge dust therefrom.

10. 'A street-cleaning machine comprising a suitable frame, a series ofpipes for close yielding contact with the surface to be cleaned, asuction and blast apparatus in communica.- tion with the pipes, adirt-receptacle in connection with said apparatus, an air-strainer inthe receptacle, an air-conveyor spout leading from said receptacle, anda dust-collector consisting of a suspended frame, upper and lower sheetsof porous fabric on the frame, and a collar on said upper sheet for theengagement of the discharge end of said spout.

1l. A street-cleaning machine comprising a suitable frame provided witha guideway a series of vertical pipes loose in the guideway for closeyielding contact with the surface to be cleaned and provided at theirsurface-contact ends with upturned shoes longitudinally of the machine,a suction and blast apparatus in communication with said pipes, adirt-receptacle in connection with said apparatus, and an air-strainerin the receptacle.

In testimony that we claim the foregoing we have hereunto set our hands,at Milwaukee, in the county of Milwaukee and State of Nisconsin, in thepresence of two witnesses.

PETER JACOBSON. CHARLES E. GAIN. lVitn esses:

N. E. OLIPHANT, B. C. Ronorr.

IOO

IIO

